19312080 has 80 divisors (see below), whose sum is σ = 60811584. Its totient is φ = 5068800.

The previous prime is 19312079. The next prime is 19312081. The reversal of 19312080 is 8021391.

It is an interprime number because it is at equal distance from previous prime (19312079) and next prime (19312081).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 19312080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19312081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15480 + ... + 16680.

Almost surely, 2^19312080 is an apocalyptic number.

19312080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19312080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30405792).

19312080 is an abundant number, since it is smaller than the sum of its proper divisors (41499504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19312080 is a wasteful number, since it uses less digits than its factorization.

19312080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1278 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 19312080 is about 4394.5511716215. The cubic root of 19312080 is about 268.2932114268.

The spelling of 19312080 in words is "nineteen million, three hundred twelve thousand, eighty".